namespace :openfoodnetwork do

  namespace :dev do

    desc 'load sample data'
    task :load_sample_data => :environment do
      require_relative '../../spec/factories'
      require_relative '../../spec/support/spree/init'
      task_name = "openfoodnetwork:dev:load_sample_data"

      Spree::MailMethod.create!(
        environment: Rails.env,
        preferred_mails_from: 'spree@example.com'
      )

      # -- Shipping / payment information
      unless Spree::Zone.find_by_name 'Australia'
        puts "[#{task_name}] Seeding shipping / payment information"
        zone = FactoryGirl.create(:zone, :name => 'Australia', :zone_members => [])
        country = Spree::Country.find_by_name('Australia')
        Spree::ZoneMember.create(:zone => zone, :zoneable => country)
        FactoryGirl.create(:shipping_method, :zone => zone)
      end

      # -- Taxonomies
      unless Spree::Taxonomy.find_by_name 'Products'
        puts "[#{task_name}] Seeding taxonomies"
        taxonomy = Spree::Taxonomy.find_by_name('Products') || FactoryGirl.create(:taxonomy, :name => 'Products')
        taxonomy_root = taxonomy.root

        ['Vegetables', 'Fruit', 'Oils', 'Preserves and Sauces', 'Dairy', 'Meat and Fish'].each do |taxon_name|
          FactoryGirl.create(:taxon, :name => taxon_name, :parent_id => taxonomy_root.id)
        end
      end

      # -- Addresses
      unless Spree::Address.find_by_zipcode "3160"
        puts "[#{task_name}] Seeding addresses"

        FactoryGirl.create(:address, :address1 => "25 Myrtle Street", :zipcode => "3153", :city => "Bayswater")
        FactoryGirl.create(:address, :address1 => "6 Rollings Road", :zipcode => "3156", :city => "Upper Ferntree Gully")
        FactoryGirl.create(:address, :address1 => "72 Lake Road", :zipcode => "3130", :city => "Blackburn")
        FactoryGirl.create(:address, :address1 => "7 Verbena Street", :zipcode => "3195", :city => "Mordialloc")
        FactoryGirl.create(:address, :address1 => "20 Galvin Street", :zipcode => "3018", :city => "Altona")
        FactoryGirl.create(:address, :address1 => "59 Websters Road", :zipcode => "3106", :city => "Templestowe")
        FactoryGirl.create(:address, :address1 => "17 Torresdale Drive", :zipcode => "3155", :city => "Boronia")
        FactoryGirl.create(:address, :address1 => "21 Robina CRT", :zipcode => "3764", :city => "Kilmore")
        FactoryGirl.create(:address, :address1 => "25 Kendall Street", :zipcode => "3134", :city => "Ringwood")
        FactoryGirl.create(:address, :address1 => "2 Mines Road", :zipcode => "3135", :city => "Ringwood East")
        FactoryGirl.create(:address, :address1 => "183 Millers Road", :zipcode => "3025", :city => "Altona North")
        FactoryGirl.create(:address, :address1 => "310 Pascoe Vale Road", :zipcode => "3040", :city => "Essendon")
        FactoryGirl.create(:address, :address1 => "6 Martin Street", :zipcode => "3160", :city => "Belgrave")
      end

      # -- Enterprises
      unless Enterprise.count > 1
        puts "[#{task_name}] Seeding enterprises"

        3.times { FactoryGirl.create(:supplier_enterprise, :address => Spree::Address.find_by_zipcode("3160")) }

        FactoryGirl.create(:distributor_enterprise, :name => "Green Grass", :address => Spree::Address.find_by_zipcode("3153"))
        FactoryGirl.create(:distributor_enterprise, :name => "AusFarmers United", :address => Spree::Address.find_by_zipcode("3156"))
        FactoryGirl.create(:distributor_enterprise, :name => "Blackburn FreeGrossers", :address => Spree::Address.find_by_zipcode("3130"))
        FactoryGirl.create(:distributor_enterprise, :name => "MegaFoods", :address => Spree::Address.find_by_zipcode("3195"))
        FactoryGirl.create(:distributor_enterprise, :name => "Eco Butchers", :address => Spree::Address.find_by_zipcode("3018"))
        FactoryGirl.create(:distributor_enterprise, :name => "Western Wines", :address => Spree::Address.find_by_zipcode("3106"))
        FactoryGirl.create(:distributor_enterprise, :name => "QuickFresh", :address => Spree::Address.find_by_zipcode("3155"))
        FactoryGirl.create(:distributor_enterprise, :name => "Fooderers", :address => Spree::Address.find_by_zipcode("3764"))
        FactoryGirl.create(:distributor_enterprise, :name => "Food Local", :address => Spree::Address.find_by_zipcode("3134"))
        FactoryGirl.create(:distributor_enterprise, :name => "Green Food Trading Corporation", :address => Spree::Address.find_by_zipcode("3135"))
        FactoryGirl.create(:distributor_enterprise, :name => "Better Food", :address => Spree::Address.find_by_zipcode("3025"))
        FactoryGirl.create(:distributor_enterprise, :name => "Gippsland Poultry", :address => Spree::Address.find_by_zipcode("3040"))
      end

      # -- Enterprise users
      unless Spree::User.count > 1 
        puts "[#{task_name}] Seeding enterprise users"

        pw = "spree123"

        u = FactoryGirl.create(:user, email: "sup@example.com", password: pw, password_confirmation: pw)
        u.enterprises << Enterprise.is_primary_producer.first
        u.enterprises << Enterprise.is_primary_producer.second
        puts "  Supplier User created:    #{u.email}/#{pw}  (" + u.enterprise_roles.map{ |er| er.enterprise.name}.join(", ") + ")"

        u = FactoryGirl.create(:user, email: "dist@example.com", password: pw, password_confirmation: pw)
        u.enterprises << Enterprise.is_distributor.first
        u.enterprises << Enterprise.is_distributor.second
        puts "  Distributor User created: #{u.email}/#{pw} (" + u.enterprise_roles.map{ |er| er.enterprise.name}.join(", ") + ")"
      end

      # -- Enterprise fees
      unless EnterpriseFee.count > 1
        Enterprise.is_distributor.each do |distributor|
          FactoryGirl.create(:enterprise_fee, enterprise: distributor)
        end
      end

      # -- Enterprise Payment Methods
      unless Spree::PaymentMethod.count > 1
        Enterprise.is_distributor.each do |distributor|
          FactoryGirl.create(:payment_method, distributors: [distributor], name: "Cheque (#{distributor.name})", :environment => 'development')
        end
      end

      # -- Products
      unless Spree::Product.count > 0
        puts "[#{task_name}] Seeding products"

        prod1 = FactoryGirl.create(:product,
                           :name => 'Garlic', :price => 20.00,
                           :supplier => Enterprise.is_primary_producer[0],
                           :taxons => [Spree::Taxon.find_by_name('Vegetables')])

        ProductDistribution.create(:product => prod1,
                                   :distributor => Enterprise.is_distributor[0],
                                   :enterprise_fee => Enterprise.is_distributor[0].enterprise_fees.first)


        prod2 = FactoryGirl.create(:product,
                           :name => 'Fuji Apple', :price => 5.00,
                           :supplier => Enterprise.is_primary_producer[1],
                           :taxons => [Spree::Taxon.find_by_name('Fruit')])

        ProductDistribution.create(:product => prod2,
                                   :distributor => Enterprise.is_distributor[1],
                                   :enterprise_fee => Enterprise.is_distributor[1].enterprise_fees.first)

        prod3 = FactoryGirl.create(:product,
                           :name => 'Beef - 5kg Trays', :price => 50.00,
                           :supplier => Enterprise.is_primary_producer[2],
                           :taxons => [Spree::Taxon.find_by_name('Meat and Fish')])

        ProductDistribution.create(:product => prod3,
                                   :distributor => Enterprise.is_distributor[2],
                                   :enterprise_fee => Enterprise.is_distributor[2].enterprise_fees.first)

        prod4 = FactoryGirl.create(:product,
                                   :name => 'Carrots', :price => 3.00,
                                   :supplier => Enterprise.is_primary_producer[2],
                                   :taxons => [Spree::Taxon.find_by_name('Meat and Fish')])

        ProductDistribution.create(:product => prod4,
                                   :distributor => Enterprise.is_distributor[2],
                                   :enterprise_fee => Enterprise.is_distributor[2].enterprise_fees.first)

        prod5 = FactoryGirl.create(:product,
                                   :name => 'Potatoes', :price => 2.00,
                                   :supplier => Enterprise.is_primary_producer[2],
                                   :taxons => [Spree::Taxon.find_by_name('Meat and Fish')])

        ProductDistribution.create(:product => prod5,
                                   :distributor => Enterprise.is_distributor[2],
                                   :enterprise_fee => Enterprise.is_distributor[2].enterprise_fees.first)

        prod6 = FactoryGirl.create(:product,
                                   :name => 'Tomatoes', :price => 2.00,
                                   :supplier => Enterprise.is_primary_producer[2],
                                   :taxons => [Spree::Taxon.find_by_name('Meat and Fish')])

        ProductDistribution.create(:product => prod6,
                                   :distributor => Enterprise.is_distributor[2],
                                   :enterprise_fee => Enterprise.is_distributor[2].enterprise_fees.first)

        prod7 = FactoryGirl.create(:product,
                                   :name => 'Potatoes', :price => 2.00,
                                   :supplier => Enterprise.is_primary_producer[2],
                                   :taxons => [Spree::Taxon.find_by_name('Meat and Fish')])

        ProductDistribution.create(:product => prod7,
                                   :distributor => Enterprise.is_distributor[2],
                                   :enterprise_fee => Enterprise.is_distributor[2].enterprise_fees.first)

      end

      enterprise2 = Enterprise.find_by_name('Enterprise 2')
      enterprise2.sells = 'any'
      enterprise2.shipping_methods.build(
        name: 'Pickup',
        zone_id: 3,
        require_ship_address: true,
        calculator_type: 'OpenFoodNetwork::Calculator::Weight',
        distributor_ids: [enterprise2.id]
      )
      enterprise2.payment_methods << Spree::PaymentMethod.last
      enterprise2.save!

      variants = Spree::Variant
        .joins(:product)
        .where('spree_products.supplier_id = ?', enterprise2.id)

      CreateOrderCycle.new(enterprise2, variants).call

      EnterpriseRole.create!(user: Spree::User.first, enterprise: enterprise2)
    end

    # Creates an order cycle for the provided enterprise and selecting all the
    # variants specified for both incoming and outgoing exchanges
    class CreateOrderCycle
      # Constructor
      #
      # @param enterprise [Enterprise]
      # @param variants [Array<Spree::Variant>]
      def initialize(enterprise, variants)
        @enterprise = enterprise
        @variants = variants
      end

      # Creates the order cycle
      def call
        incoming_exchange.order_cycle = order_cycle
        incoming_exchange.variants << variants

        outgoing_exchange.order_cycle = order_cycle
        outgoing_exchange.variants << variants

        order_cycle.exchanges << incoming_exchange
        order_cycle.exchanges << outgoing_exchange

        order_cycle.save!
      end

      private

      attr_reader :enterprise, :variants

      # Builds an order cycle for the next month, starting now
      #
      # @return [OrderCycle]
      def order_cycle
        @order_cycle ||= OrderCycle.new(
          coordinator_id: enterprise.id,
          name: 'Monthly order cycle',
          orders_open_at: Time.zone.now,
          orders_close_at: Time.zone.now + 1.month
        )
      end

      # Builds an exchange with the enterprise both as sender and receiver
      #
      # @return [Exchange]
      def incoming_exchange
        @incoming_exchange ||= Exchange.new(
          sender_id: enterprise.id,
          receiver_id: enterprise.id,
          incoming: true
        )
      end

      # Builds an exchange with the enterprise both as sender and receiver
      #
      # @return [Exchange]
      def outgoing_exchange
        @outgoing_exchange ||= Exchange.new(
          sender_id: enterprise.id,
          receiver_id: enterprise.id,
          pickup_time: '8 am',
          incoming: false
        )
      end
    end
  end
end